Electric liquid medicine mixing system

Abstract

The invention relates to an electric liquid medicine mixing system which is used in cooperation with disposable consumables, the disposable consumables comprise an injector and at least two liquid suction hoses with liquid suction needles, and the disposable consumables comprise a mounting base; the at least two clamping devices are installed on the installation base and comprise clamping assemblies used for clamping penicillin bottles or infusion bottles and sliding assemblies, and the sliding assemblies are used for driving the clamping assemblies to move from the installation position to the working position so as to be matched with the liquid suction needle heads; the drawing and pushing device comprises a fixed seat mounted on the mounting seat, a drawing and pushing assembly mounted on the fixed seat and used for driving a core rod of the injector to be drawn and pushed, and a liquid stopping assembly used for controlling liquid in the liquid suction branch pipe to be stopped; the rotating device comprises a rotating base and a driving motor mounted on the rotating base, and the mounting seat is connected with an output shaft of the driving motor to drive the mixed liquid to shake uniformly. The device has the effects that the labor intensity of medical staff is relieved, and environmental pollution and health damage to the medical staff are reduced.

Description

Technical Field

[0001] This application relates to the field of medical assistive devices, and in particular to an electric drug mixing system. Background Technology

[0002] Currently, medication mixing is typically done manually. The specific procedure involves manually drawing the liquid medication or water for injection from the infusion bag using a syringe and injecting it into a vial. This vial is then mixed with the powdered or lyophilized powder for injection contained within. During this process, the vial is repeatedly shaken manually until the medication is thoroughly mixed. Finally, the medication is drawn from the vial and injected into the infusion bag or bottle. This method is not only time-consuming and labor-intensive, but the repeated transfer of medication using a syringe can easily cause secondary contamination. Furthermore, if the powder in the vial contains harmful additives, the mixing process can potentially harm the health of medical personnel. Summary of the Invention

[0003] In order to reduce the workload of medical staff and minimize the possibility of environmental pollution or harm to the health of medical staff during the mixing process, this application provides an electric drug mixing system.

[0004] The electric liquid mixing system provided in this application adopts the following technical solution: An electric liquid mixing system, controlled by a controller and used in conjunction with disposable consumables, the disposable consumables including a syringe and at least two suction tubes with suction needles connected to the suction end of the syringe, comprising: Mounting base; At least two clamping devices are mounted on the mounting base, including a clamping assembly for clamping vials or infusion bottles and a sliding assembly. The mounting base is provided with an installation position and a working position for the clamping assembly. The sliding assembly is used to move the clamping assembly from the installation position to the working position to cooperate with the aspiration needle. The pumping device includes a fixed base mounted on the mounting base, a pumping assembly mounted on the fixed base for driving the plunger of the syringe to pump, and a liquid-stopping assembly mounted on the fixed base for controlling the liquid flow in the suction branch tube. The rotating device includes a rotating base and a drive motor mounted on the rotating base. The mounting base is connected to the output shaft of the drive motor to drive the mixed liquid in the vial or infusion bottle to shake evenly.

[0005] By adopting the above technical solution, the assembly work is completed first before mixing: the syringe, suction tubing, and suction needle are placed on the fixed base, and the syringe plunger is connected to the suction and push assembly; the mouths of the vial and the infusion bottle are clamped by the clamping assembly, which is in the installation position at this time. Then the controller drives the sliding assembly to move the clamping assembly to the working position, so that the suction needle is inserted into the vial and the infusion bottle respectively; during mixing, the medicine in the infusion bottle is first drawn out. By controlling the suction and push assembly and the stop assembly, the medicine drawn into the syringe is pushed out into the vial. Then the drive motor is started to drive the entire mounting base to rotate, so that the powder in the vial and the medicine are mixed evenly to form a first mixture; then the suction and push assembly and the stop assembly are controlled to switch the opening and closing relationship of the suction tubing, and the first mixture drawn into the syringe is injected into the infusion bottle. The drive motor is started again to mix the medicine in the infusion bottle and the first mixture evenly to form a second mixture. It reduces the workload of medical staff and minimizes the possibility of environmental pollution or harm to the health of medical staff during the mixing process.

[0006] Optionally, the clamping assembly includes a clamping seat, which has a clamping groove for inserting the cap of the infusion bottle or vial. Two spring-loaded blocks are retractably provided on the two inner walls of the clamping groove for pressing against the side wall of the cap of the infusion bottle or vial.

[0007] By adopting the above technical solution, the clamping groove is used to clamp the mouth of the vial or infusion bottle, and the spring clip applies a certain clamping force to the vial or infusion bottle to improve the clamping strength and clamping stability.

[0008] Optionally, a mounting base is installed on the side of the mounting seat away from the fixed seat. The interior of the mounting base and the bottom surface of the mounting seat form an installation space for the sliding component to be installed. The sliding component and the clamping component are connected by a transition plate. The mounting seat has a clearance hole for the transition plate to pass through.

[0009] By adopting the above technical solution, setting the sliding component on the base of the mounting seat can not only save installation space, but also allow the infusion bottle to abut against the top surface of the mounting seat after installation, sharing the pressure borne by the clamping seat and making the installation of the infusion bottle more stable.

[0010] Optionally, the sliding assembly includes a linear slide, a stepper motor mounted on one side of the linear slide, a lead screw mounted on the output shaft of the stepper motor, and a slider threaded onto the lead screw. The transition plate is connected to the top of the slider, and a linear slide rod is mounted on the linear slide, the linear slide rod passing through the slider.

[0011] By adopting the above technical solution, the stepper motor starts and drives the lead screw to rotate. Under the driving force of the lead screw and the limiting action of the linear slide, the slider slides along the length of the lead screw, thereby driving the clamping seat to gradually move towards the working position.

[0012] Optionally, the fixed base has a first positioning groove for embedding the syringe, and the push assembly includes a linear pusher embedded in the fixed base and a connector connected to the free end of the linear pusher. The connector is used to connect to the syringe rod.

[0013] By adopting the above technical solution, the connector is used to achieve a quick and stable connection with the syringe rod, and the linear pusher drives the syringe rod to move linearly, thereby realizing the absorption and delivery of the drug solution.

[0014] Optionally, the liquid-stopping assembly includes a liquid-stopping block and a drive component that moves the liquid-stopping block closer to or away from the suction hose.

[0015] By adopting the above technical solution, when the medicine is drawn from the infusion bottle, the driving component drives the stop block to move, so that the stop block is locked with a suction tube connected to the vial, thereby blocking the connection between the suction tube and the syringe. When the medicine is pushed from the syringe into the vial, the connection and disconnection of the suction tube are reversed. The operation is convenient and easy to control.

[0016] Optionally, the driving component includes a liquid-stopping motor, a rotary connector mounted on the output shaft of the liquid-stopping motor, and a driving block eccentrically disposed on the top surface of the rotary connector. The bottom of the liquid-stopping block is provided with a groove for the driving block to be embedded in. The fixed base is also equipped with a guide for guiding the liquid-stopping block. When in the initial position and when the suction hose is open, the drive block is located at the far end of the rotating connector. When the suction hose is blocked, the liquid-stopping motor drives the drive block to make a circular motion, so as to move the liquid-stopping block closer to the suction hose until the suction hose is clamped.

[0017] By adopting the above technical solution, the circular motion of the driving block is converted into the linear motion of the liquid-stopping block. At the same time, the guide component is set to prevent the liquid-stopping block from rotating synchronously with the driving block. The structure is simple and the operation is convenient.

[0018] Optionally, the top surface of the fixing base is further provided with a second positioning groove for fixing the connection of the suction hose and a third positioning groove for fixing the suction needle; the liquid-stopping block is located between the second positioning groove and the third positioning groove. The guide includes a stop block mounted on the top surface of the fixed seat, and the side of the stop block is provided with a protrusion for embedding in the side wall of the stop block.

[0019] By adopting the above technical solution, a through groove is provided on the stop block for the protrusion to be inserted. The through groove serves as a guide rail for the sliding of the liquid stop block. Through a simple structural design, it is easy to guide the movement of the liquid stop block while restricting the circumferential rotation of the liquid stop block.

[0020] Optionally, a top block is installed on the liquid-stopping block, and the end of the top block is provided with a sharp corner to press the liquid-absorbing hose against the drive block when it rotates to the proximal end. The top block is set at a 90° angle to the liquid suction tube.

[0021] By adopting the above technical solution, the top block not only makes it easier to indicate the position of the drive block, but also makes it easier to clamp the suction tube; the top block and the suction tube are set at a 90° angle, so that the clamping effect between the top block and the suction tube is optimal, and the mixed liquid is prevented from flowing out from the gap.

[0022] Optionally, the rotating base includes a mounting plate for placing a mounting seat and a sloping platform mounted on the side of the mounting plate away from the mounting seat, the bottom of the sloping platform being at an angle to the mounting plate.

[0023] By adopting the above technical solution, when the rotating base is placed on the platform, the mounting plate forms a certain angle with the platform. When the drive motor drives the mounting base to rotate the vial and the infusion bottle, the tail end of the vial and the infusion bottle has a high-low-high height change, which makes it easy to move the powder or liquid medicine located at the tail end of the vial or the infusion bottle to the bottle mouth position under the action of gravity, so as to achieve uniform mixing of the liquid medicine.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. This application securely clamps the vial and infusion bottle by setting a clamping device, and sets a fixing seat for installing disposable consumables, as well as a suction and push component and a liquid-stopping component for controlling the operation of disposable consumables. This facilitates the extraction of the medicine in the infusion bottle and the first mixture in the vial, which are then mixed with the liquid finally injected into the infusion bottle to form a second mixture. The operation is simple and the process of suction and mixing is fully automated, reducing the labor intensity of medical staff and reducing the possibility of environmental pollution or harm to the health of medical staff. 2. The spring-loaded locking mechanism helps maintain appropriate clamping force on the mouth of the vial or infusion bottle, preventing insecure clamping. 3. By eccentrically setting the drive block on the rotating connector, inserting the stop block and the drive block together, and providing a guide to guide the stop block and prevent rotation, the circular motion of the drive block can be converted into the linear motion of the stop block. The structure is ingenious and easy to control. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure from a top-down view of this application.

[0026] Figure 2 This is a schematic diagram of the rotating device of this application.

[0027] Figure 3 This is a partial cross-sectional view of the mounting base and the fixing base, which is partially cut open to show the structure of the bottom surface of the mounting base and the structure of the liquid-stopping component.

[0028] Figure 4 This is a schematic diagram of the clamping device.

[0029] Figure 5 This is a schematic diagram of the pushing and pulling device.

[0030] Figure 6 This was done to demonstrate the relationship between the driving component, the liquid stop block, and the guide component. Figure 3 A magnified view of a portion of point A in the middle.

[0031] Explanation of reference numerals in the attached drawings: 1. Mounting base; 11. Clearance hole; 2. Clamping device; 21. Clamping assembly; 211. Clamping seat; 2111. Clamping groove; 2112. First groove; 2113. Second groove; 212. Spring block; 2121. Limiting block; 2122. Spring pin; 22. Sliding assembly; 221. Mounting base; 222. Transition plate; 223. Linear slide; 224. Stepper motor; 225. Lead screw; 226. Slider; 227. Linear slide rod; 3. Pull-out device; 31. Fixed seat; 311. First positioning groove; 3111. First clamping groove; 3112. Placement groove; 312. Second positioning groove; 313. Third positioning groove; 32. Pull-out assembly; 321. Linear... 322. Linear actuator; 3221. Connecting component; 3222. Connecting base; 3222. Snap-fit ​​groove; 33. Liquid-stopping assembly; 331. Liquid-stopping block; 3311. Slide groove; 332. Driving component; 3321. Liquid-stopping motor; 3322. Rotating connector; 3323. Driving block; 333. Guide component; 3331. Stop block; 3332. Through groove; 334. Protrusion; 335. Top block; 336. Adapter plate; 4. Rotating device; 41. Rotating base; 411. Mounting plate; 412. Sloping platform; 42. Drive motor; 43. First bearing; 5. Disposable consumables; 51. Syringe; 511. Core rod; 52. Liquid suction tubing; 53. Liquid suction needle; 6. Infusion bottle; 7. Vial; 8. Rotating ring. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0033] This application discloses an electric liquid mixing system, controlled by a controller, and used in conjunction with disposable consumables 5. (See also...) Figure 1 The disposable consumable 5 includes a syringe 51 and at least two suction tubes 52 with suction needles 53 connected to the suction end of the syringe 51. The disposable consumable 5 is used to facilitate the mixing of at least two medications. The medication in the infusion bag or bottle 6 can be any medication required for the patient's treatment; in this application, only saline solution is used as an example. (See reference...) Figure 1 The electric drug mixing system includes a mounting base 1, at least two clamping devices 2 mounted on the mounting base 1 for fixing vials 7 or infusion bottles 6, a pumping device mounted on the mounting base 1 for driving the syringe 51 to pump and push to transfer saline or mixed solution, and a rotating device 4 connected to the mounting base 1 for driving the mounting base 1 to rotate as a whole to mix the mixed solution evenly.

[0034] Reference Figure 2 The rotating device 4 includes a rotating base 41 and a drive motor 42 mounted on the rotating base 41. The drive motor 42 is mounted on the bottom surface of the rotating base 41, and its output shaft extends through and out to the top surface of the rotating base 41. The mounting base 1 is connected to the output shaft of the drive motor 42. A first bearing 43 is mounted on the top surface of the rotating base 41 to provide good support for the mounting base 1 and ensure its smooth rotation. Specifically, the rotating base 41 is fixedly connected to the inner ring of the first bearing 43, and the mounting base 1 is fixedly connected to the outer ring of the first bearing 43.

[0035] Reference Figure 2 When the mixture in the vial 7 or infusion bottle 6 is mixed evenly, the drive motor 42 drives the mounting base 1, clamping device 2, and pushing device 3 to swing back and forth at a certain angle. To ensure even mixing, the rotating base 41 includes a mounting plate 411 for placing the mounting base 1 and a sloping platform 412 integrally formed on the side of the mounting plate 411 facing away from the mounting base 1. The bottom of the sloping platform 412 and the mounting plate 411 are at a certain angle. When the rotating device 4 is placed on the table, the mounting plate 411 forms a slope. When the mounting base 1 rotates, the height of the mounting base 1 changes, facilitating the flow of the mixture in the vial 7 or infusion bottle 6 towards the end near the bottle opening under gravity, thereby achieving uniform mixing.

[0036] Reference Figure 1 and Figure 3The clamping device 2 includes a clamping assembly 21 for clamping the cap of the vial 7 or the infusion bottle 6, and a sliding assembly 22 for sliding the clamping assembly 21. The mounting base 1 has an installation position and an initial position for the clamping assembly 21. The sliding assembly 22 is used to move the clamping assembly 21 from the installation position to the working position to insert the aspiration needle 53 into the vial 7 or the infusion bottle 6.

[0037] Reference Figure 1 The clamping assembly 21 includes a clamping base 211, on which a clamping groove 2111 is provided for the cap of the infusion bottle 6 or vial 7 to be inserted. Preferably, the longitudinal section of the clamping groove 2111 is U-shaped with the opening facing upwards, so as to facilitate the insertion of the bottle cap. The cap of the vial 7 and the infusion bottle 6 typically includes a cap body and a rotating ring 8 fixed to the cap body. The clamping groove 2111 includes a first groove 2112 for the cap body to be inserted and a second groove 2113 communicating with the first groove 2112 for the rotating ring 8 to be inserted. By providing the second groove 2113 for inserting the rotating ring 8, the probability of the vial 7 or the infusion bottle 6 shaking when the aspiration needle 53 pierces the cap body can be reduced. (Refer to...) Figure 4 To ensure that the two clamping seats 211 maintain a good clamping force on the caps of the vial 7 and the infusion bottle 6, spring-loaded blocks 212 are telescopically provided on the two opposite side walls of the second groove 2113 to press the side walls of the rotating ring 8 against them. Specifically, the spring-loaded blocks 212 include limiting blocks 2121 slidably connected to the two inner walls of the clamping seats 211 and spring pins 2122 installed between the limiting blocks 2121 and the inside of the clamping seats 211. When the bottle cap is inserted into the clamping groove 2111, the rotating ring 8 opens the two oppositely arranged limiting blocks 2121 and inserts them into the second groove 2113. The opening of the limiting blocks 2121 causes the spring pins 2122 to compress, and the restoring force of the spring pins 2122 presses the rotating ring 8 against them.

[0038] It should be noted that the clamping components 21 for holding the vial 7 or the infusion bottle 6 have the same structure, the only difference being the size of the model.

[0039] Furthermore, in order to ensure the cooperation between the clamping assembly 21 and the push-pull device 3, and because the infusion bottle 6 has a certain weight, in order to improve the installation stability of the infusion bottle 6, after the cap of the infusion bottle 6 is clamped by the clamping assembly 21, the side wall of the infusion bottle 6 abuts against the top surface of the mounting base 1, so that the mounting base 1 can bear part of the weight.

[0040] Reference Figure 3 and Figure 4To accommodate the installation of the clamping assembly 21, the sliding assembly 22 of this application is fixed to the bottom surface of the mounting base 1 via a mounting base 221, and is located in the gap formed between the bottom surface of the mounting base 1 and the top surface of the rotating base 41. The mounting base 221 is U-shaped with its opening facing the mounting base 1, and the interior of the mounting base 1 and its bottom surface form an installation space for the sliding assembly 22. The sliding assembly 22 is connected to the clamping base 211 via a transition plate 222, and the mounting base 1 has a clearance hole 11 for the transition plate 222 to pass through. When the sliding assembly 22 drives the clamping base 211 to move, the transition plate 222 moves along the axial direction of the clearance hole 11.

[0041] Reference Figure 4 The sliding assembly 22 includes a linear slide 223 fixed to the base plate of the mounting base 221, a stepper motor 224 mounted on the linear slide 223, a lead screw 225 fixed to the output shaft of the stepper motor 224, and a slider 226 threadedly connected to the lead screw 225. The linear slide 223 is also U-shaped with its opening facing the mounting base 1. The interior of the linear slide 223 forms a sliding space for the slider 226 to slide. The stepper motor 224 is fixed to the side wall of the linear slide 223 away from the sliding space. A transition plate 222 is connected to the top of the slider 226. To restrict the slider 226 to slide only along the length direction of the lead screw 225 and not rotate synchronously with the lead screw 225, a linear slide rod 227 is fixed to the linear slide 223. The linear slide rod 227 is arranged parallel to the lead screw 225 and passes through the slider 226. Preferably, the stepper motor 224 in this application is a DC stepper motor 224. In addition, the sliding component 22 only needs to achieve linear displacement of the clamping component 21. Therefore, the sliding component 22 of this application can also be configured as an electric push rod, a linear motor, or a linear motor.

[0042] Reference Figure 5 The pumping device 3 includes a fixed base 31 fixed to the top surface of the mounting base 1, a pumping assembly 32 installed inside the fixed base 31 for pumping the core rod 511 of the syringe 51 to transfer the liquid, and a liquid-stopping assembly 33 installed on the fixed base 31 for controlling the liquid flow in the suction branch tube. The syringe 51 is installed between the pumping assembly 32 and the liquid-stopping assembly 33. A first positioning groove 311 is provided on the fixed base 31 for the syringe 51 to be inserted to fix the position of the syringe 51. The first positioning groove 311 includes a first clamping groove 3111 for holding the tail end of the syringe 51 and a placement groove 3112 for placing the front end of the syringe 51. The cross-section of the first clamping groove 3111 is T-shaped to limit the position of the syringe 51.

[0043] Reference Figure 5The push assembly 32 includes a linear pusher 321 embedded in the fixed base 31 and a connector 322 connected to the free end of the linear pusher 321. The connector 322 is connected to the core rod 511.

[0044] The linear actuator 321 only needs to enable the linear movement of the core rod 511. This application only uses a linear electric actuator 321 as an example for illustration. The connecting member 322 is fixed to the end of the piston rod using a pin. Of course, the linear actuator 321 can also use a linear motor, linear motor, motor-driven lead screw slider, etc. to drive the core rod 511 to move.

[0045] Reference Figure 5 The connector 322 includes a connecting base 3221, on which a snap-fit ​​groove 3222 is provided for the tail end of the core rod 511 to be inserted. The side of the snap-fit ​​groove 3222 that is away from the fixed base 31 is connected to the outside, and the cross-section of the snap-fit ​​groove 3222 is T-shaped, so as to pull or push back the core rod 511.

[0046] Reference Figure 5 The liquid-stopping assembly 33 includes a liquid-stopping block 331 and a driving member 332 that moves the liquid-stopping block 331 closer to or further away from the suction hose 52. When the driving member 332 drives the liquid-stopping block 331 to clamp the suction hose 52, the pipeline is blocked; when the driving member 332 drives the liquid-stopping block 331 to release its contact with the suction hose 52, the pipeline is opened.

[0047] Reference Figure 5 This application provides two suction tubes 52, arranged in a Y-shape. The mounting base 31 also has a second positioning groove 312 for connecting the two suction tubes 52 to the syringe 51, and two third positioning grooves 313 for fixing the two suction needles 53. A liquid-stopping assembly 33 is located between the second positioning groove 312 and the third positioning grooves 313. The liquid-stopping assembly 33 is correspondingly positioned to the suction tubes 52.

[0048] Reference Figure 3 and Figure 6The driving component 332 includes a liquid-stopping motor 3321, a rotary connector 3322 mounted on the output shaft of the liquid-stopping motor 3321, and a driving block 3323 eccentrically disposed on the top surface of the rotary connector 3322. The bottom of the liquid-stopping block 331 has a groove 3311 for the driving block 3323 to be inserted. The rotary connector 3322 is used to increase the connection space of the liquid-stopping block 331. The top surface of the rotary connector 3322 can be any shape with an axis (or center line), such as a cam, circle, square, rectangle, etc. This application only uses a circle as an example for illustration. In the initial position, the drive block 3323 is located on the side of the rotating connector 3322 away from the suction tube 52 (i.e., the distal end). When it is necessary to close the suction tube 52, the stop motor 3321 starts and drives the drive block 3323 to rotate 180°. The drive block 3323 rotates to the side closer to the suction tube 52 (i.e., the proximal end). The rotation of the drive block 3323 causes the stop block 331 to gradually slide horizontally towards the suction tube 52, gradually locking the suction tube 52. Rotating 180° clockwise or counterclockwise will drive the stop block 331 back to its original position, at which point the suction tube 52 is reopened. A guide 333 is also installed on the fixed base 31 to guide the movement of the stop block 331 and prevent the stop block 331 from rotating with the drive block 3323.

[0049] Reference Figure 6 Specifically, the guide member 333 is correspondingly provided with the liquid-stopping component 33, and the guide member 333 is positioned between the two suction hoses 52. Each guide member 333 includes two stops 3331 integrally formed on the top surface of the fixed base 31, with the two stops 3331 located on both sides of the liquid-stopping block 331. Each side of the liquid-stopping block 331 is equipped with a protrusion 334, and a through groove 3332 is formed on the inner wall of the two stops 3331 for the protrusion 334 to be inserted. When the liquid-stopping block 331 moves, the through groove 3332 serves as the guide track.

[0050] Reference Figure 6 A top block 335 is integrally formed on the side of the liquid-stopping block 331 facing the suction hose 52. The end of the top block 335 away from the liquid-stopping block 331 is provided with a sharp corner to press the suction hose 52 tightly when the drive block 3323 rotates to the near end. The top block 335 increases the pressure when it is pressed against the suction hose 52, thereby improving the sealing effect of the liquid-stopping block 331. The top block 335 is set at a 90° angle to the suction hose 52, and the traveling direction of the liquid-stopping block 331 (i.e., the axial direction of the through groove 3332) is also set at a 90° angle to the suction hose 52, so that the top block 335 has the best sealing effect.

[0051] In order to precisely control the rotation angle of the liquid-stopping motor 3321, the liquid-stopping motor 3321 of this application is described using a DC stepper motor 224 as an example.

[0052] Reference Figure 6 To facilitate the installation of the liquid-stopping assembly 33 while ensuring the installation position of the liquid-stopping block 331, the liquid-stopping motor 3321 is fixed to the bottom surface of the mounting base 1 via the adapter plate 336.

[0053] The implementation principle of an electric liquid mixing system according to an embodiment of this application is as follows: Installation: Place the vial 7 and the infusion bottle 6 into the clamping groove 2111 respectively, place the syringe 51 into the first positioning groove 311, place the tail of the core rod 511 into the snap-fit ​​groove 3222, place the suction tubing 52 between the second positioning groove 312 and the third positioning groove 313, and place the suction needle 53 into the third positioning groove 313. At this time, the clamping seat 211 is in the installation position.

[0054] Connection: Start two stepper motors 224 to move two clamping seats 211, so that the two suction needles 53 are inserted into the corresponding vials 7 or infusion bottles 6 respectively.

[0055] Powder mixing: The corresponding stop-fluid motor 3321 rotates 180°, driving the top block 335 to clamp the suction tubing 52 connected to the vial 7. The linear drive 332 pulls the core rod 511 to draw saline into the syringe 51. Then, both stop-fluid motors 3321 are controlled to rotate 180°, opening the tubing connected to the vial 7 and closing the tubing connected to the infusion bottle 6. The linear drive 332 pushes the core rod 511 to inject saline into the vial 7.

[0056] The liquid medicine and powder in vial 7 are mixed to form the first mixture: the drive motor 42 is started and configured to rotate 60° clockwise and then 60° counterclockwise, repeated 3-5 times to mix the first mixture evenly.

[0057] The first mixture is drawn into the infusion bottle 6 to form the second mixture: the linear drive 332 draws the first mixture from the vial 7 into the syringe 51, and the corresponding stop motor 3321 is controlled to rotate 180° to reconnect the suction tubing 52 connected to the infusion bottle 6, so that the first mixture is injected into the infusion bottle 6 to form the second mixture.

[0058] Mixing: Start the drive motor 42 to mix the second mixture in the infusion bottle 6 evenly.

[0059] Disassembly: Start the two stepper motors 224 to reverse the two stepper motors 224, which will drive the clamping seat 211 to gradually move to the installation position, and pull the aspiration needle 53 out of the vial 7 and the infusion bottle 6.

[0060] Residual liquid aspiration: With both suction tubing 52 connected and the core rod 511 not pulled out, activate the linear actuator 321 to pull the core rod 511, aspirating the residual liquid in the suction tubing 52 into the syringe 51, thus preventing the mixed liquid from dripping from the suction needle 53 and polluting the environment.

[0061] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electrically powered liquid mixing system for use with a disposable set (5) comprising a syringe (51) and at least two liquid suction hoses (52) with liquid suction needles (53) connected to the liquid suction end of the syringe (51), characterized in that: include: Mounting base (1); At least two clamping devices (2) are mounted on the mounting base (1), including a clamping assembly (21) for clamping a vial (7) or an infusion bottle (6) and a sliding assembly (22). The mounting base (1) is provided with an installation position and a working position for the clamping assembly (21). The sliding assembly (22) is used to drive the clamping assembly (21) from the installation position to the working position to cooperate with the aspiration needle (53). The pumping device (3) includes a fixed seat (31) mounted on the mounting base (1), a pumping assembly (32) mounted on the fixed seat (31) for driving the core rod (511) of the syringe (51) to pump, and a liquid-stopping assembly (33) mounted on the fixed seat (31) for controlling the liquid flow in the suction branch tube. The rotating device (4) includes a rotating base (41) and a drive motor (42) mounted on the rotating base (41). The mounting base (1) is connected to the output shaft of the drive motor (42) to drive the mixture in the vial (7) or infusion bottle (6) to shake evenly.

2. The electrically powered liquid mixing system of claim 1, wherein: The clamping assembly (21) includes a clamping seat (211), and the clamping seat (211) has a clamping groove (2111) for inserting the cap of the infusion bottle (6) or vial (7); The clamping groove (2111) has two retractable spring clips (212) on its two inner walls for engaging with the side wall of the cap of the infusion bottle (6) or vial (7).

3. The electrically powered liquid mixing system of claim 1, wherein: The mounting base (1) is mounted on the side away from the fixed base (31) with a mounting base (221). The interior of the mounting base (221) and the bottom surface of the mounting base (1) form an installation space for the sliding component (22) to be installed. The sliding component (22) and the clamping component (21) are connected by a transition plate (222). The mounting base (1) is provided with a clearance hole (11) for the transition plate (222) to pass through.

4. The electrically powered liquid mixing system of claim 3, wherein: The sliding assembly (22) includes a linear slide (223), a stepper motor (224) mounted on one side of the linear slide (223), a lead screw (225) mounted on the output shaft of the stepper motor (224), and a slider (226) threaded onto the lead screw (225). The transition plate (222) is connected to the top of the slider (226). A linear slide rod (227) is mounted on the linear slide (223) and passes through the slider (226).

5. The electrically powered liquid mixing system of claim 1, wherein: The fixed base (31) is provided with a first positioning groove (311) for the syringe (51) to be inserted. The push assembly (32) includes a linear pusher (321) embedded in the fixed base (31) and a connector (322) connected to the free end of the linear pusher (321). The connector (322) is used to connect with the core rod (511).

6. The electrically powered liquid mixing system of claim 1, wherein: The liquid-stopping assembly (33) includes a liquid-stopping block (331) and a drive (332) that moves the liquid-stopping block (331) closer to or further away from the suction hose (52).

7. The electrically powered liquid mixing system of claim 6, wherein: The driving component (332) includes a liquid-stopping motor (3321), a rotary connector (3322) mounted on the output shaft of the liquid-stopping motor (3321), and a driving block (3323) eccentrically disposed on the top surface of the rotary connector (3322). The bottom of the liquid-stopping block (331) is provided with a sliding groove (3311) for the driving block (3323) to be inserted. The fixed base (31) is also equipped with a guide (333) for guiding the liquid-stopping block (331). When in the initial position and when the suction hose (52) is open, the drive block (3323) is located at the far end of the rotating connector (3322). When the suction hose (52) is blocked, the liquid-stopping motor (3321) drives the drive block (3323) to make a circular motion, so as to drive the liquid-stopping block (331) to move closer to the suction hose (52) until the suction hose (52) is clamped.

8. The electrically powered liquid mixing system of claim 7, wherein: The top surface of the fixing base (31) is also provided with a second positioning groove (312) for fixing the connection of the suction hose (52) and a third positioning groove (313) for fixing the suction needle (53); the liquid stop block (331) is located between the second positioning groove (312) and the third positioning groove (313); The guide (333) includes a stop (3331) mounted on the top surface of the fixed base (31), and the side of the stop block (331) is provided with a protrusion (334) for embedding in the side wall of the stop (3331).

9. The electrically powered liquid mixing system of claim 8, wherein: A top block (335) is installed on the liquid-stopping block (331), and the end of the top block (335) is provided with a sharp corner to press the suction hose (52) against the drive block (3323) when it rotates to the proximal end. The top block (335) is set at a 90° angle to the suction tube (52).

10. The electrically powered liquid mixing system of claim 1, wherein: The rotating base (41) includes a mounting plate (411) for placing the mounting seat (1) and a sloped platform (412) mounted on the side of the mounting plate (411) away from the mounting seat (1), the bottom of the sloped platform (412) being at an angle to the mounting plate (411).

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